First off, what is the make \model of your machine so I can help you better. Otherwise, take the cover of the unit off and look to see if you can see any small gears at the front of the drawer. If so use a small screwdriver to turn the gear or gears. The laser assy. will move down first to get out of the way of the drawer then the drawer will slide open.
If you cannot see any gears you must get the drawers' faceplate off. Once off you should be able to see gears or a belt and motor that you spin to get the laser assy. down. Once the laser assy. is down you will be able to slide the drawer out by hand.
Replace belt if there is one. Good Luck!!

barneyluc